降噪

The new muffler device has simple structure,it has lesser effect on the resistance loss of chief ventil...

该装置结构简单,对主要风机的阻力损失影响小,防尘、防潮及效果明显,可广泛的应用于煤矿主要风机的。

The harnessing of noise and smust to boiler are studied,pugging and ventilation are adopted to harnest noise of fan.

过对煤矿锅炉治理和烟尘治理的研究,阐述了过采用隔罩和机械风冷却设施对引风机和鼓风机的治理。